随着输送带行业的发展，输送带的配件托辊也从以前的单一品种向多元化发展，现在的托辊厂在普通托辊的基础上开发出了缓冲托辊，缓冲托辊用于带式输送机受料处减缓落料对输送带的冲击，缓冲托辊尺寸，所以托辊的结构性能就显得更加的重要。
With the development of industry belt, conveyor belt roller parts from a single variety of previous diversified development, now the roller factory based on ordinary roller is developed on the buffer roller, the buffer roller belt conveyor for feeding at the slow blanking of the belt impact buffer roller the size, structure and properties so the roller is more important.
缓冲托辊几乎都是用高分子材料制成的，缓冲托辊，因为高分子材料重量轻，旋转惯性小，可以减小托辊和输送带之间的摩擦，延长输送带使用寿命。由于落料点的粉尘大，缓冲托辊密封性能差时极易被污染造成轴承的损坏，高分子材料制成的缓冲托辊可以很好的避免这种情况。
Buffer rollers are almost all made of polymer materials, buffering rollers, because polymer materials are light in weight and small in rotation inertia, which can reduce friction between idlers and conveyor belts and prolong service life of conveyor belts. Because the dust of the blanking point is large, the damage of the bearing roller can be easily caused by the poor sealing performance of the buffer roller, so that the cushion roller made of macromolecule material can avoid this situation very well.
托辊外壳材料的选择和技术要求
Selection and technical requirements for the material of the roller shell
托辊通常用无缝钢管制成外壳，为节省材料费、降低成本，缓冲托辊标准，也可使用有缝钢管做外壳，但焊缝要求较高，以免刮破胶带。现在也有使用PVC管材，玻璃钢、橡胶、陶瓷管做外壳的，后几种好处是耐腐蚀、不生锈、密度小，新型缓冲托辊，除玻璃钢外承载负荷量比钢管低。
Usually a casing made of seamless steel roller, in order to save the cost of materials, reduce the cost, the buffer roller standard, also can use the tube with shell, but the weld requirement is high, so as not to scratch tape. Now, PVC pipes, FRP, rubber and ceramic pipes are used as shell. The following advantages are corrosion resistance, no rust and little density. The new type of buffer rollers, besides load bearing capacity of FRP, is lower than that of steel pipes.
轴承座的选用和技术要求
Selection and technical requirements of bearing seat
轴承座一般有铸铁轴承座和冲压轴承座两种。冲压轴承座使用起来要比铸铁轴承座有优势。因此，铸铁轴承座有逐渐被淘汰的趋势。当然，还有某些特殊托辊还必须使用铸铁轴承座。
In general, there are two kinds of bearing pedestal, cast iron bearing seat and stamping bearing seat. The use of the stamping bearing seat is superior to the cast iron bearing seat. Therefore, the cast iron bearing pedestal has the tendency to be eliminated gradually. Of course, there are some special rollers that must also use a cast iron bearing seat.